4218622 has 4 divisors (see below), whose sum is σ = 6327936. Its totient is φ = 2109310.

The previous prime is 4218583. The next prime is 4218623. The reversal of 4218622 is 2268124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×4218622³ (a number of 21 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4218623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054654 + ... + 1054657.

It is an arithmetic number, because the mean of its divisors is an integer number (1581984).

Almost surely, 2^4218622 is an apocalyptic number.

4218622 is a deficient number, since it is larger than the sum of its proper divisors (2109314).

4218622 is a wasteful number, since it uses less digits than its factorization.

4218622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2109313.

The product of its digits is 1536, while the sum is 25.

The square root of 4218622 is about 2053.9284310803. The cubic root of 4218622 is about 161.5809675573.

The spelling of 4218622 in words is "four million, two hundred eighteen thousand, six hundred twenty-two".